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Julli [10]
2 years ago
11

Plz i need help fast im timed!!!!!!

Physics
2 answers:
IRINA_888 [86]2 years ago
8 0
Answer: hope this helps

professor190 [17]2 years ago
4 0

Answer:

sorry i throght i had the answer

Explanation:

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a roller coaster has a speed of 16 m/s at a height 28 meters above the ground what is its speed at the top of the next hill whic
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c

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3 years ago
Each ball has a negligible size and a mass of 11.5 kg and is attached to the end of a rod whose mass may be neglected. The rod i
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Answer:

3.31m/s

Explanation:

Angular momentum for 3s is

L = L_i_n_i + L_3_s

L = 2(11.5kg) + \int\limits^ {3s}_ {0s} {(t^2 + 2)} \, dt

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7 0
3 years ago
A car slows down from speed of 72
Nastasia [14]

Explanation:

Given parameters:

Initial velocity = 72km/hr

Final velocity  = 0km/hr

Time taken  = 25s

Unknown:

Acceleration = ?

Solution:

To solve this problem, convert km/hr to m/s;

           1000m = 1km

           3600s = 1hr

  72km/hr;

          1km/hr  = 0.278m/s

         72km/hr = 0.278 x 72  = 20.02m/s

Acceleration is the change in velocity divided by the time taken;

       Acceleration = \frac{final velocity - initial velocity }{time}  

       Acceleration  = \frac{0 - 20.02}{25}   = -0.8m/s

The car  is actually decelerating at a rate of 0.8m/s

5 0
3 years ago
Similarity between heat and temperature
pentagon [3]
Heat is a temperature and temperature has many factors such and cold, warm, and hot.
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